1994 Chevrolet P30 Service and Repair Manual

This factory service and repair manual for the 1994 Chevrolet P30 covers two versions of the 6.5L diesel V8, one turbocharged and one naturally aspirated, alongside the 4.3L V6 and the 5.7L and 7.4L gasoline V8s. Five bodies are listed, including cutaway and stripped motorhome chassis, and three trims. Because the two diesels differ in induction, their fuel, air and diagnostic procedures are specified separately rather than shared, as are the torque values and wiring diagrams for the bodies built on this frame.

Engines covered

• 6.5L V8 (395 cu in) — OHV, turbocharged, diesel
• 7.4L V8 (454 cu in) — OHV, naturally aspirated, gasoline
• 4.3L V6 (262 cu in) — OHV, naturally aspirated, gasoline
• 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline
• 6.5L V8 (395 cu in) — OHV, naturally aspirated, diesel

Body styles covered

• Motorhome, cutaway
• Chassis
• Motorhome, stripped chassis
• 2-door cab & chassis
• 2-door van

Trims covered

• Base
• Base Delivery
• Base Stripped

Known issues on the 1994 P30. Three recalls apply to this model year. Two are replacement filters that fail to seal — one shedding engine oil, one leaking fuel — either of which can start a fire. The third addresses fuel-injected 6.5L diesels that stall, misfire, respond poorly to the throttle, or crank a long time before starting hot or cold. Owners have logged ten complaints, led by the parking brake with four and vehicle speed control with two. Parking brake adjustment, throttle linkage and diesel fuel system diagnostics are all specified here.